As far as I understand the distributor licensing for Googles apps and services outright prohibits manufacturers from selling any unapproved or Google free Android devices in countries where that isn't considered anti competitive.
That being said, it's Google. Even you didn't sign anything that says you're not allowed to do Google-less Android, when you launch a non-Google device, Googly devices may just "mysteriously" fall into "oops sorry we are understaffed, we don't have time to handle your requests".